Can't control light at switch

It is wired so that you control the light with the remote. You cannot have it both ways. You either control it with the wall switch or the remote. Once you kill the power to the receiver by turning off power at the wall switch, you are only applying power to the receiver when you turn power back on. You are not supplying power to the light. You then must turn on the light with the remote. This is the purpose of a remote fan/light control. You could rewire it to control the light with the switch and only control the fan with the remote if you wish, but as you have it now, it is working correctly.